Development Length of Headed Bar Based on Nonuniform Bond Stress Distribution
Source abstract
Abstract
The anchorage capacity of headed bars shows large variations according to design conditions, such as diameter of reinforcing bars, location of anchorage, and the use of fiber-reinforced concrete. In the present study, a design method was studied considering such various design conditions. In the proposed model, the anchorage strength of a headed bar was defined as the sum of the contributions of the straight bar length and the head bearing. Particularly, a nonuniform bond stress distribution model was used for the straight bar length. The proposed method was applied to 361 existing test specimens with various conditions of headed bar anchorage, including compression-compression-tension (CCT) node, lap splice, and beam-column joint. The predicted results were compared to the existing test results and the predictions of current design codes including ACI 318 and Model Code 2010. The results showed that the proposed model predicted the test results with reasonable precision.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Innovative concrete reinforcement materials · Structural Load-Bearing Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
Show source-provided references
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